Inventor · disambiguated record
Charles N. Richardson
Also filed as: RICHARDSON CHARLES N
4 granted patents·258 citations·filing 1980–1981
82Inventor score
Technology areasE21B
Files withTRI STATE OIL TOOLS INC4
Top patents by PatentIndex Score
4 records- 0190US4374543AApparatus for well treatingTRI STATE OIL TOOLS INC·Filed 1981·Granted Feb 22, 1983·118 cites·3 claims
- 0282US4390065AApparatus for well treatingTRI STATE OIL TOOLS INC·Filed 1981·Granted Jun 28, 1983·67 cites·2 claims
- 0377US4314608AMethod and apparatus for well treatingTRI STATE OIL TOOLS INC·Filed 1980·Granted Feb 9, 1982·56 cites·6 claims
- 0446US4382623AApparatus for retrieving fluid plugTRI STATE OIL TOOLS INC·Filed 1981·Granted May 10, 1983·17 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →